Differential hub.



G. W. STANLEY. DIFFERENTIAL HUB. APPLIOATION vFILED HIB. 13, 1909.

IHM" I l I "il illll. i mmm E @i v Patented May 30.1911.

y UNITED sTaTiisv PATENT oFFioE.

v GEORGE W. STANLEY, OF LOGANSPORT, INDIANA, ASSIGNOR OF ONE-EIGHTHTO ZACHRA TAYLOR, ONE-EIGHTH T DAWS TAYLOR, ONE-EIGHTH TO CLARK' M. TAYLOR, ONE-EIGHTH TO JOSEPH TAYLOR, ANI) ONE-FOURTH T0 E. D. llllIOlvG'Alil',`

ALL OF LOGANSPORT, INDIANA.

y, DIFFERENTIAL HUB.'

Patented May 30, 1911.

To all whom it may concern:

Beit known that I, GEORGE W. STANLEY, a citizen of the United States, residing at ;.Logarnniort1 in the county of Cass and State l 5 of Indiana, have invented a new and useful Improvement in Differential Hubs, of which the following is a specification.

This invention relates to differential hubs for automobiles, the object being to provide a hub which is so constructed t-hat it will allow the outside wheels of an automobile when turning a corner to revolve faster than the inside wheels whereby skidding is pre` 1,6 A still further object of my invention is to provide the axle with arrowheaded menibers which work in internally fluted hubs which are locked by balls when the axle is driven in either direction, said balls being so arranged that they will be thrown out of engagement wit-h the members when the wheel revolves faster than the axle.

A still further object of the invention is .to provide a differential hub which will Ptake the plate of the differential gear now in use on automobiles and other vehicles of this character whereby' the wheels can be driven in such a manner that any one ofthe wheels i ,Rican turn faster than the driving axle.

A still further object of myinvention is to provide leach of the wheels carried by the driving axle on an automobile with two pairs of locking balls which are so mounted ,.1 within the wheel that two of the saine will BIS be locked when the wheel is being driven forwardly and the other two when the wheel is being driven backwardly, said balls working by gravity. 4 A further object of the invention is to 40 provide a ball and socket locking device in -which the balls are so mounted Within the Huted hub -that they will work in unisonso that a double locking device is formed whereby all danger of the wheels slipping is l5 prevented and at the same time the wheels Iare allowed to run faster than the axle.

A further object of the invention is to provide a ball and socketlocking device which com rises arrow-headed members l which work 1n luted hubs in connection with |50 balls whereby the.balls will be picked up by points formed to each side ofthe arrowheaded members which will release the balls and will allow the hub to rot-ate faster than the axle so that in turning a corner the outside wheel can travel faster than the inside wheel and as soon as the machine is driven straight again the balls will be locked'in their normal positions.

With these objects in view, my invention 6o consists of the novel features of vconstruction, combination andY arrangement of parts hereinafter described, pointed out in the claims and shown in the accompanying `v drawings, in which, i 65 Figure 1 is a vertical section through my 'improved hub. Fig. 2 isa face view of one of the sections of the hub showing the ball in a locked position for driving the hub forwardly and, Fig. 3 is a similar view 70 showing the ball in a locked position for, driving the hub backwardly.

In carrying out my invention, I employ ,a hub -A which is formed of two duplicate sections having annular recesses A which are tinted, said utes being in alinement with each other for the purpose hereinafter fully described. The sections of the hub are provided with flanges and arranged between the sections is a plate B which is secured between the same by bolts C which pass through flanges of the hub sections and through the plate so as to securely lock the members to ether and at intervals the flanges of the hu sections are provided with spoke sockets as clearly shown at D into which the spokes D are adapted to be secured but it is of course understood that various other forms of spoke sockets can he used in connection with this hub, this special form being merely shown so as to illus trate how the spokes could be secured therein asin different constructions of axles it will require different spoke sockets to suit the same.

The hub .is mounted on anv axle E in the 5 ordinary manner which is provided with a collar E and is secured thereon by a nut IL2 which allows the same to rotate thereon. It is of course understood that one of"these special constructed hubs is placed at each end ofthe driving axle of an automobile so that the same power will be applied vto each of the wheels. Secured on the axle within each of the recesses formed in the hub are arrow-headed members F which are providedwith curved projections or finger p0rtions F terminating in pointed ends F2 uponv opposite sides of the arrowheads for the purpose'hereinafterfu'lly described, and

which are of such a size that they will fitsnugly within the recesses of the hub.

Intermediate the oppositely disposed -inclined faces of the arrow heads and the y curved projections of finger portions, I preferably provide recesses or pockets F3, said vr/ecesses or-poekets being adapted to receive balls F which are adapted to be locked with-v f in the flutes of the hub by the arrow shaped members so that when the axle is revolved the hub will be securely locked to the same T40-by the bahs and it can be readily seen that by having two sets of balls as clearly shown and having the flutes of the hub arranged in alinement two balls will b e in a locked position at the same time and the other two will aremain in two 'of the pockets F3. As the iwheel is being driven by the axle when a corner is turned the outside lwheel starts to ,"travel faster than the axle, the ball which 'was in a locked position will assume the po- 40 sition as shown in dotted lines in Fig. 2 so as to allow 'the wheel to overrun whereby skidding is prevented and as soon as the automobile is driven straight again the arrow-head will engage the ball and lock the same inthe flute without any lost motion. l/Vhen the driving axle is reversed one of the points F2 picks up theballs which have been locked within the flutes on the forward motion and carries the same into the pockets F3 R0 when the same is being driven forwardl The arrow headed members are preferably I ykeyed on the axle as clearly shown but it is of' course understood that various other manners of securing the same thereon can be used if desired.

It willA be seen that by providing both of the driving wheels of an automobile with hubsof this character each of the wheels will be locked to the driving axle by two balls on either the forward o`r rear movement so that if one of the balls should become worn so that it would allow the arrowheaded member to force the same out of the pocket the other ball would lock the wheel csthereto whereby it is almost impossible for 1 upon the axle, together with balls contained the hub to slip on the axle. It will also be seen that when the axle is reversed in either direction the points pick up the balls which have been locked in the respective flutes and carry them to 'the pockets and as the hub is 'le rotated the balls are held therein out of use. As soon as the wheel starts to rotate fasterl than the axle the ball drops out of the flute whichreleases the hub and allows the sameto rotate free on the axle which will prevent. the skidding of automobiles in rounding corners and at the same time increases the life of the-,.tires.

From the foregoing description it will be seen that I have provlded a hub which is exceedingly simple and cheap in construction and one which is composed of very Vfew parts which are so arranged and connected together that any one of the parts can be readily replaced when it becomes worn.l

What I claim is y l. In a device of thqlrind described, the combinationwith an axle, of a hub revolu` Y bly mounted thereon, a member arranged within the hub and fixed upon the axle, said member having oppositely disposed inclined faces and oppositely disposed curved fingers or projections; and ballsl arranged within the hub and adapted to be locked in engagement therewith. by either incline face, and disengaged by either curved projection.

2. In a device of the kind described the combination with an axle, of a hub loosely mounted on said axle provided with a luted recess, an arrow-headed ymember fixed 'on 100 said axle within said recess provided withMA points to each side ofthe head and balls arranged within said recess for locking said arrow-headed member to said hub.

3. In a device of the Ikind described the combination with an axle, of a hub mounted on said axle provided with a luted recess, an arrow-headed member xed on said axle witliinsaid recess provided with sockets and points, and balls arranged within said recess co-actingwith said arrow-headed member in such'a mannerthat one of said balls will be locked "in one of the flutes when the saine-MM"-Y is being driven in either direction and the other ball will be held within the socket.

4. In a'device of the kind described the combination with an axle, provided with an arrowheaded member of a hub. loosely mounted on said axle provided with a liuted recess to receive said arrow-headed member, balls arranged within said recess for locking saidarrow-headed member to the hub and points carried by said arrow-headed member for releasing said balls.

5. The combination with an axle, of a sectional hub revolubly mounted thereon, said hub having a central partition and annular recesses upon opposite sides thereof, of members arranged within said recesses and fixed in each recess, eglch member having oppoand c\1rved projections fm' the puxpnse itely disposed ulclined faces adapted to spccl'ed. .orce the balls into locking engzwement with u" ,1 y ,Y the hub, and oppositely disposedncmved prohbORGI w' 5 I Ax LL" jections for dlsengugng sind balls from the Witnesses:

hub, each member havmg re'cesses 0r pock- Joslclll '1`.\\'l.u|, ets arranged mtermedmte the mclmed faces Y Y E. D. MORGAN. 

